2009 Revenue Bond Project Descriptions

1. Waterline Rehabilitation and Replacement Program – Staff continuously evaluates the condition of the water distribution system based on mainbreaks, pipe material and age, capacity and fire protection needs. Based on these criteria, along with the criticality of the watermain within the system and the number of services affected, watermains are targeted for replacement. This project will design and construct the watermains chosen for replacement.

2. Ground Storage Tanks Rehabilitation: Oread & Clinton WTP – The two existing Oread water storage tanks and pump station were constructed in the 1930’s and 1950’s and have reached the end of their useful lives. This project will study the replacement of the two tanks with a single tank and begin design of the study recommended improvements. The study will investigate the feasibility of the water system to function temporarily without the two tanks or the interim measures that would be needed to operate the system while the new tank is constructed.

The repainting of the Clinton ground storage tanks would target specific areas where the coating is failing. These repairs will maintain the integrity of the coating and the tanks.

3. Wastewater Pump Station Improvements – The project includes improvements to the prioritized list of vacuum prime pump stations throughout the City including Pump Station 27. These pump stations are in need of replacement for capacity and mechanical reliability issues. The pump stations would be replaced with submersible stations that meet current department design standards for operations and safety.

Pump Station 28 is in need of replacement due to limit capacity and incidents of backups. This pump station can be eliminated and the flows redirected to Pump Station 35. Pump Station 35 would then be reconstructed with this project to serve as a regional pump station.

4. Anaerobic Digester Improvements at the Lawrence Wastewater Treatment Plant – The project involves the design of a thermal dyer dewatering process and odor control, associated modifications to the existing biosolids dewatering building to accommodate the dryer installation, modifications to existing piping and valves in the solids and gas control buildings, installation of insulation on the concrete roof of Digester 1, modifications to the gas control building/equipment to allow processing of additional digester gas and an evaluation of energy recovery from the digester gas system. This project is required to increase the capacity of the wastewater plant’s solids processing stream to match the plant’s liquid processing capacity and provide treatment for a community of 100,000 persons.